How Tall Does a Deer Fence Need to Be?
Eight feet is the answer. Here is why, and the two situations where you can get away with less.
Ceaser Sinclair · July 29, 2026 · 6 min read
Eight feet. That is the working answer for a single upright fence, and it is what every deer fencing supplier builds to.
Why eight
A healthy white-tailed deer clears 8 feet from standing. Individual animals have been recorded higher, but 8 feet stops essentially all normal garden intrusion.
Six feet does not. Deer jump 6-foot fences routinely, and a 6-foot fence is the single most common expensive mistake in deer fencing. It looks substantial, costs most of what an 8-foot fence costs, and fails.
Seven feet stops most deer most of the time. If a local ordinance caps you at seven, it is worth building; just expect occasional breaches under winter pressure.
The two ways to win at lower heights
Deer have poor depth perception. Both workarounds exploit that rather than trying to out-jump the animal.
Double fencing
Two parallel fences, each 4–5 feet tall, set 3–4 feet apart.
A deer will not jump into a space it cannot judge the landing for. Facing two barriers with an unclear gap between them, it declines. This works as reliably as a single 8-foot fence and is often far more acceptable in neighbourhoods with height restrictions. Two 4-foot fences read as landscaping; one 8-foot fence reads as a compound.
The cost is footprint. You need 3–4 feet of ground you are willing to give up.
Angled fencing
A single fence 5–6 feet tall, tilted outward at roughly 45 degrees away from the garden.
Deer judge the jump from where they stand. An outward-leaning fence means the horizontal distance to clear is much greater than the height suggests, and they will not attempt it. Less common than double fencing but effective and cheaper in materials.
What matters as much as height
Gaps at ground level. Deer go under fences far more often than people expect. Any gap over 6 inches will be used, per Oregon Department of Fish and Wildlife fencing guidance. Stake the bottom edge down.
Gates. The most common failure point in an otherwise sound fence. A gate that does not close to the same standard as the fence is a deer door.
Terrain. A fence running downhill effectively loses height on the uphill side, because deer jump from the higher ground. On sloped sites, build to the height measured from the uphill approach.
Visibility. Deer will run into a fence they cannot see, damaging it and sometimes themselves. Black polypropylene mesh is nearly invisible at distance, so flagging tape along the top line for the first few weeks teaches local deer it is there.
Cost expectations
Eight-foot polypropylene mesh with ground stakes is the cheapest genuinely effective option and suits most garden perimeters. Welded wire costs more, lasts far longer, and resists chewing from the rodents that polypropylene does not.
For a garden rather than an estate, protecting the beds that matter is almost always cheaper than fencing the property line. See fencing individual plants.
Choosing a height strategy
| Approach | Built height | Ground needed | Relative cost | Use it when |
|---|---|---|---|---|
| Single upright | 8 ft | Fence line only | Baseline | Nothing restricts height and appearance is not the constraint |
| Double fence | Two at 4–5 ft | A 3–4 ft strip | About 1.4x | An ordinance or a neighbour caps height, or you want it to read as landscaping |
| Angled | 5–6 ft at 45 degrees | A 4–5 ft strip | About 0.8x | Height is capped, the budget is tight, and the ground is level |
| Single at 7 ft | 7 ft | Fence line only | About 0.9x | Seven is the legal ceiling. Expect occasional winter breaches |
| Single at 6 ft | 6 ft | Fence line only | About 0.85x | Never, for deer. It costs most of what works and does not work |
The last row is in the table because it is what most people buy.
Buying to height
Height gets decided at the checkout more often than at the design stage, because of what suppliers actually stock.
- Polypropylene mesh is sold in 7.5 and 8 ft rolls. Buy the 8 and stake the surplus into the ground rather than trimming it off.
- Welded and woven wire usually tops out at 5 or 6 ft per roll. An 8 ft wire fence is normally two courses, a 4 ft bottom and a 4 ft top, overlapped and clipped. Price both courses before comparing the total against mesh.
- Decorative metal panels rarely exist above 6 ft. That is a manufacturing constraint rather than a preference, and it is why panels nearly always need doubling or an angled top.
- Posts run 2 ft longer than the fence. An 8 ft fence needs 10 ft posts. A kit quoting 8 ft posts for an 8 ft fence has not accounted for the ground.
- Rolls are sold by length, not by run. Add about 10 per cent for corners, gate returns and the slack lost in tensioning.
Common follow-ups -- how high deer actually jump, whether they go over or under, and why a plant ignored for years gets stripped in February -- are answered in the deer FAQ.